Vortex method of flow measurement: models of vortex shedding and modern means of modeling

Study of a vortex measurement method of the expenditure is considered in the article. Vortex flowmeters are widely used in practice. Various methods of investigation of these flowmeters have been used to improve the quality of measurements. Methods of investigation of vortex formation phenomen were changing with the development of technical solutions: trial and error method, analysis of the measurement signal, investigation of the field of fluid flow, flow visualization, laboratory investigations on the test stand and modeling. The main analytical models of vortex formation described in foreign scientific literature are considered. Development of computer technology allowed the use of numerical modeling in the investigation of a vortex flowmeter. The most interesting results of process modeling of vortex formation are provided, and also recommendations about carrying out similar researches are formulated. The use of ANSYS CFX software in process modeling of vortex formation allows to consider all factors influencing on measurement accuracy of the expenditure.